Sodium Aluminium Sulphate in White Crystalline Powder Form tastes like an astringent and is slowly soluble in water. Sodium Aluminium Sulphate is offered in white coloured crystalline powder form. Sodium Aluminium Sulphate is widely used as acidulent in food, biscuits industry and manufacturing baking powder. Sodium Aluminium Sulphate in White Crystalline Powder Form is packed in Laminated HDPE bag with liner weighing 25 Kgs or 50 Kgs.